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TypeScript - convert string to bytes array
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In this short article, we would like to show, how using TypeScript, convert string to bytes array.
Hint: below solution works under web browser and Node.js TypeScript.
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const toBytes = (text: string): number[] => {2
const surrogate = encodeURIComponent(text);3
const result = [];4
for (let i = 0; i < surrogate.length; ) {5
const character = surrogate[i];6
i += 1;7
if (character == '%') {8
const hex = surrogate.substring(i, (i += 2));9
if (hex) {10
result.push(parseInt(hex, 16));11
}12
} else {13
result.push(character.charCodeAt(0));14
}15
}16
return result;17
};18
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// Usage example:21
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const bytes: number[] = toBytes('Some text here...'); // converts string to UTF-8 bytes23
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console.log(bytes);Output:
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[83, 111, 109, 101, 32, 116, 101, 120, 116, 32, 104, 101, 114, 101, 46, 46, 46]